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by Pete.Silson
Mon Apr 03, 2017 3:22 pm
Forum: Ariel Talk
Topic: Side Stand
Replies: 15
Views: 2977

Re: Side Stand

Paul, The (righthand) prop stand from the SQ4 bolts though the front engine plates. 2.JPG 3.JPG I don't know if your plates will have the holes drilled already or whether these would be a factory modified set for the £10 add-on in the advert. It also has a spring clip bolted to a lug on the lower fr...
by Pete.Silson
Fri Feb 17, 2017 10:10 am
Forum: Four stroke
Topic: Brake Pedal Stop
Replies: 11
Views: 2011

Re: Brake Pedal Stop

Simon,

The picture below shows the pedal stop bolt in situ on my iron 4G, this holds the pedal level with the footrest. The groove on the stop is due to wear over the years I guess rather than a design feature.

Pete

DSCF0156.JPG

Ariel 003.jpg
by Pete.Silson
Thu Feb 02, 2017 10:44 am
Forum: Main Chat Forum
Topic: solex carb sq4
Replies: 9
Views: 1389

Re: solex carb sq4

Keith, I have just overhauled my 26AHD and, like you, found that the butterfly didn't close fully after reassembly. After taking it apart again I noticed that the butterfly has a chamfer around the edge and therefore can only be fitted one way up - this may be the issue with yours. Also the holes in...
by Pete.Silson
Wed Dec 14, 2016 4:34 pm
Forum: Four stroke
Topic: 4G conrod markings
Replies: 3
Views: 635

Re: 4G conrod markings

...and the pistons apparently.
pistons.JPG
by Pete.Silson
Sun Dec 11, 2016 12:59 pm
Forum: Four stroke
Topic: 4G conrod markings
Replies: 3
Views: 635

Re: 4G conrod markings

Paul, The letter B is stamped into the web (not cast) and is on the left hand (roller bearing) side of all the rods. It would seem logical to mark the rods in this way to ensure correct re-assembly. The bearing caps are also marked (see photo). The crankshafts in this engine had clearly never been d...
by Pete.Silson
Sat Dec 10, 2016 11:16 am
Forum: Four stroke
Topic: 4G conrod markings
Replies: 3
Views: 635

4G conrod markings

I have carefully to labelled all the conrods in order to replace them exactly the same way round on each crank journal. There is a small letter B stamped into the web on the same side of each conrod (in relation to the engine orientation). Does anybody know whether this was something done by the fac...
by Pete.Silson
Fri Dec 02, 2016 10:52 am
Forum: For sale/wanted - Parts
Topic: Wanted - Rocker spindle for 4G
Replies: 0
Views: 389

Wanted - Rocker spindle for 4G

Hello all,

I am in need of a rocker spindle for a 1946 (iron) 4G. NOS would be nice (don't laugh at my optimism) but a decent used item would do the job. I have talked to Bruce Longman and searched through other sources to no avail.

Regards, Pete
by Pete.Silson
Sat Nov 12, 2016 11:18 am
Forum: Four stroke
Topic: Galvanising 4G exhaust manifolds?
Replies: 9
Views: 1263

Re: Galvanising 4G exhaust manifolds?

John, Nev, Thanks for your thoughts. The machine was bought from new by my dad in 1946 who ran it for about 8 years and then it was then parked in a shed and hasn't been touched since 1954. My father wasn't the sort of person to spend out on "embellishments" like chroming hence I am 99% su...
by Pete.Silson
Fri Nov 11, 2016 9:52 am
Forum: Four stroke
Topic: Galvanising 4G exhaust manifolds?
Replies: 9
Views: 1263

Galvanising 4G exhaust manifolds?

I am currently overhauling a 1946 4G that hasn't seen the light of day since the early 1950's. When I started wire brushing rust from the cast iron manifolds to my surprise shiny silver patches came up out of the dirt. On closer examination it appears that the manifold had at one time been plated (a...
by Pete.Silson
Wed Nov 02, 2016 7:29 pm
Forum: Four stroke
Topic: 4G - three-part rocker spindle
Replies: 6
Views: 873

Re: 4G - three-part rocker spindle

Brian Thanks for the warning. I have taken out all the valve guides today and, although a couple of the exhaust guides were chipped at the "hot" end, none of them showed signs of contact with the underside of the top cap. As far as I can ascertain there is only one type of valve guide for ...

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